单项选择题
A.1.5 B.1 C.0.5 D.2
A.0.003,0.002,0.005 B.0.002,0.005,0.003 C.0.005,0.003,0.002 D.0.003,0.005,0.002
A.直接给水方式 B.单设水箱给水方式 C.设贮水池的给水方式 D.设水箱的给水方式